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US8371208B2ActiveUtilityPatentIndex 83

Method for shooting a semi-automatic firearm

Assignee: SLIDE FIRE SOLUTIONS LPPriority: Nov 18, 2009Filed: Feb 13, 2012Granted: Feb 12, 2013
Est. expiryNov 18, 2029(~3.4 yrs left)· nominal 20-yr term from priority
Inventors:COTTLE JEREMIAH
F41C 23/04F41C 23/14F41A 19/11F41C 23/20F41C 23/16
83
PatentIndex Score
15
Cited by
43
References
19
Claims

Abstract

A method for rapidly firing a semi-automatic firing unit having a trigger, a receiver and a barrel. The firing unit is placed in a handle so as to enable only reciprocating linear movement along a constrained linear path that is parallel to the barrel. The user grasps the handle and places their trigger finger firmly on a finger rest. In use, the user generates a forward activation force that urges the firing unit forwardly so that the trigger collides with the stabilized finger, stimulating the first round of ammunition in the receiver. A recoil force from the discharging ammunition pushes the firing unit rearwardly so that the trigger separates from the stabilized finger. During the recoil event, the user may apply negative resistance to the translating firing unit which may be varied by the user on-the-fly to proportionally change the firing tempo.

Claims

exact text as granted — not AI-modified
1. A method for firing multiple rounds of ammunition in rapid succession from a semi-automatic firearm, said method comprising the steps of:
 loading a first round of ammunition into the receiver of a semi-automatic firearm, the receiver configured for chambering a round of ammunition and operatively connected to a barrel extending forwardly from the receiver and a trigger configured to selectively stimulate a round of ammunition disposed in the receiver, the receiver and barrel and trigger being moveable together as a firing unit; 
 providing a handle adapted to be held by a user; 
 supporting the firing unit in a forward pointing direction by the handle so as to enable reciprocating movement between the handle and the firing unit; 
 stabilizing an actuator in a stationary position relative to the handle so that the firearm trigger will intermittently collide with the actuator in response to reciprocating movement of the firing unit; 
 generating a primary forward activation force without spring force assistance urging the firing unit forwardly while the user firmly holds the handle so that the trigger collides a first time with the stabilized actuator; 
 generating a recoil force sufficient to cause the firing unit to translate rearwardly relative to the stabilized actuator, separating the trigger from the actuator in direct response to the recoil force; 
 automatically self-loading a second round of ammunition into the receiver in response to the recoil force; 
 generating a secondary forward activation force without spring force assistance urging the firing unit forwardly relative to the stabilized actuator so that the trigger collides a second time with the stabilized actuator; and 
 manually varying the intensity of the secondary forward activation force relative to the primary forward activation force to proportionally alter the firing tempo of the semi-automatic firearm. 
 
     
     
       2. The method of  claim 1 , further including reducing the primary forward activation force during said step of generating a recoil force with respect to the first round of ammunition, and further including reducing the secondary forward activation force during said step of generating a recoil force with respect to the second round of ammunition, and further including varying the intensity of said step of reducing the primary forward activation force with respect to the intensity of said step of reducing the secondary forward activation to proportionally alter the firing tempo of the semi-automatic firearm. 
     
     
       3. The method of  claim 2 , wherein said step of reducing the primary forward activation force includes applying forwardly directed negative-resistance human muscle power to the firing unit, the negative resistance having a force value less than the recoil force. 
     
     
       4. The method of  claim 1 , wherein the actuator comprises a human finger. 
     
     
       5. The method of  claim 1 , further including automatically resetting the trigger during said step of generating a recoil force. 
     
     
       6. The method of  claim 1 , further including automatically unloading any residual portion of the first ammunition from the receiver prior to said step of automatically self-loading a second round of ammunition into the receiver. 
     
     
       7. The method of  claim 6 , wherein said unloading and self-loading steps are carried out in response to gas pressure generated during said discharging step. 
     
     
       8. The method of  claim 1 , wherein said step of supporting the firing unit further includes slideably supporting the firing unit in the handle, and restricting access of the actuator to the trigger during said step of separating the trigger from the actuator. 
     
     
       9. The method as set forth in  claim 8 , wherein said step of restricting access includes substantially completely covering one side of the trigger with a guard during at least a portion of said step of generating a primary forward activation force. 
     
     
       10. The method as set forth in  claim 9 , wherein the actuator comprises a human finger having a tip and the guard includes a finger rest, further including placing the finger tip on the finger rest. 
     
     
       11. A method for firing multiple rounds of ammunition in succession from a semi-automatic firearm, the semi-automatic firearm of the type including a receiver configured for chambering a round of ammunition and operatively connected to a barrel extending forwardly from the receiver and a trigger configured to selectively stimulate a round of ammunition disposed in the receiver, the receiver and barrel and trigger being moveable together as a firing unit, said method comprising the steps of:
 supporting the firing unit in a handle for reciprocating movement between the handle and the firing unit; 
 placing a first hand of a user in operative relationship with the firing unit; 
 firmly holding the handle with a second hand of the user; 
 stabilizing an actuator in a stationary position relative to the handle so that the firearm trigger will intermittently collide with the actuator in response to reciprocating movement of the firing unit relative to the handle; 
 moving the user's first hand to generate a primary forward activation force urging the firing unit forwardly relative to the handle without spring force assistance so that the trigger collides a first time with the stabilized actuator; 
 generating a recoil force sufficient to cause the firing unit to translate rearwardly relative to the handle held firmly by the second hand of the user, separating the trigger from the actuator in direct response to the recoil force; 
 during said step of generating a recoil force, applying forwardly directed negative-resistance human muscle power to the rearwardly translating firing unit through the user's first hand, the negative resistance having a force value less than the recoil force; 
 automatically self-loading a second round of ammunition into the receiver in response to the recoil force; 
 moving again the user's first hand to generate a secondary forward activation force urging the firing unit forwardly relative to the handle without spring force assistance so that the trigger collides a second time with the stabilized actuator. 
 
     
     
       12. The method of  claim 11 , wherein the actuator comprises a human finger. 
     
     
       13. The method of  claim 11 , further including automatically resetting the trigger during said step of generating a recoil force. 
     
     
       14. The method of  claim 11 , further including automatically unloading any residual portion of the first ammunition from the receiver prior to said step of automatically self-loading a second round of ammunition into the receiver. 
     
     
       15. The method of  claim 14 , wherein said unloading and self-loading steps are carried out in response to gas pressure generated during said discharging step. 
     
     
       16. The method of  claim 11 , wherein said step of separating the trigger from the actuator includes moving the trigger by at least a predetermined distance (D), and said step of supporting the firing unit further includes slideably supporting the firing unit in a forward pointing direction in a handle, and restricting access of the actuator to the trigger during said moving and said moving again steps until the firing unit moves forward relative to the handle by at least the predetermined distance (D). 
     
     
       17. The method as set forth in  claim 16 , wherein said step of restricting access includes substantially completely covering one side of the trigger with a guard during at least a portion of said step of moving the user's first hand to generate a primary forward activation force. 
     
     
       18. The method as set forth in  claim 16 , wherein the actuator comprises a human finger having a tip, further including placing the finger tip on the opposite side of the trigger from the guard and resting the finger tip on the finger rest and activating the trigger with the finger in response to the firing unit moving the predetermined distance (D) relative to the handle. 
     
     
       19. A method for firing multiple rounds of ammunition in succession from a semi-automatic firearm, the semi-automatic firearm of the type including a receiver configured for chambering a round of ammunition and operatively connected to a barrel extending forwardly from the receiver and a trigger configured to selectively stimulate a round of ammunition disposed in the receiver, the receiver and barrel and trigger being moveable together as a firing unit, said method comprising the steps of:
 supporting the firing unit in a handle for reciprocating movement between the handle and the firing unit; 
 placing a first hand of a user under the barrel of the firing unit so as to move the firing unit in concert with movement of the first hand and vice versa; 
 gripping the handle with a second hand of the user, and holding the handle tight with respect to the body of the user; 
 stabilizing a trigger finger on the second hand of the user in a stationary position relative to the handle so that the firearm trigger will intermittently collide with the trigger finger in response to reciprocating movement of the firing unit; 
 moving the user's first hand without spring force assistance to generate a primary forward activation force urging the firing unit forwardly in the handle so that the trigger collides a first time with the stabilized trigger finger while the second hand holds the handle tight with respect to the body of the user.

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